Vehicle high-beam and low-beam control system and control method and vehicle

Abstract

A vehicle high-beam and low-beam control system, comprising a signal receiving module, a light source module and a control module, the light source module comprising a light source unit and a light ray casting position adjustment structure. When information received by the signal receiving module indicates turning on a low beam, the control module controls the light ray casting position adjustment structure to adjust the light source unit so as to form a low-beam light pattern on a light distribution screen. When information received by the signal receiving module indicates turning on a high beam, the control module controls the light ray casting position adjustment structure to adjust the emergent angle of the light source unit, such that the HV point illuminance value of a light patten formed by the light source unit on the light distribution screen is increased by 5-342lx than the HV point illuminance value of the low-beam light pattern. A vehicle high-beam and low-beam control method, using the vehicle high-beam and low-beam control system. A vehicle, having the vehicle high-beam and low-beam control system and executing the high-beam and low-beam control method. Such configuration can increase the utilization rate of light energy, reduce the power consumption of headlamps, and simplify vehicle high-beam and low-beam circuits.

Description

Vehicle high and low beam control system, control method and vehicle

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the benefit of Chinese patent application 202311518857.8 filed on November 15, 2023, the contents of which are incorporated herein by reference. Technical Field

[0003] The present application relates to vehicle light control, and in particular to a vehicle high and low beam control system, a control method and a vehicle. Background Art

[0004] Vehicle headlights have two functions: low beam and high beam. Low beam lighting primarily aims to meet the vehicle's lighting range and brightness requirements while not blinding other vehicles on the road, thereby preventing them from dazzling drivers and impacting driving safety. High beam lighting is activated when there are no other vehicles on the road or when they are at a distance, providing a longer illumination range.

[0005] There are currently multiple ways to switch between high and low beams. Headlights with independent high and low beam lighting systems switch between high and low beams by turning the high beam lighting system on or off. Headlights using dual filament bulbs, such as H4 bulbs, have high and low beam lighting patterns designed for different filaments, and switching between high and low beams is achieved by switching the filaments on and off. There is also an integrated high and low beam lighting system that switches between high and low beam patterns by switching the position of the sunshade with a solenoid valve. Alternatively, the integrated high and low beam lighting system has separate high and low beam light sources and corresponding optical elements, such as reflectors or concentrators, and switches between high and low beams by turning the high beam light source on or off.

[0006] The aforementioned method of switching between high and low beam light types by using a solenoid valve to shift the position of the sunshade, when low beam function is required, only the position of the sunshade needs to be switched to make the light cutoff line appear at the top of the low beam. The actual power of the light source does not change. In other words, when low beam function is implemented, light energy is wasted. Moreover, the light blocked by the sunshade will continue to shine on the sunshade. Prolonged exposure can cause local overheating, posing a safety hazard. The other two methods require separate low beam and high beam lighting systems, and the vehicle body must also provide two circuits to power the high beam and low beam respectively.

[0007] Summary of the Invention

[0008] One of the purposes of this application is to provide a vehicle high and low beam control system, which can improve the utilization rate of light energy, reduce the safety hazards caused by local excessive temperature, and simplify the vehicle high and low beam circuit.

[0009] The second purpose of this application is to provide a vehicle high and low beam control method, which can improve the utilization rate of light energy, reduce the power used by high and low beams, reduce the safety hazards caused by local excessive temperature, and simplify the vehicle high and low beam circuit.

[0010] The third purpose of this application is to provide a vehicle that can improve the utilization rate of light energy, reduce the safety hazards caused by local excessive temperature, and simplify the vehicle's high and low beam light circuits.

[0011] In order to achieve the above-mentioned purpose, the first aspect of the present application provides a vehicle high and low beam control system, including a signal receiving module, a light source module and a control module;

[0012] The light source module includes a light source unit and a light projection position adjustment structure, wherein the light projection position adjustment structure is connected to the light source unit to adjust the emission angle of the light source unit;

[0013] The signal receiving module is suitable for receiving information for turning on or off the high / low beam function, and the control module is respectively connected to the signal receiving module, the light source unit and the light projection position adjustment structure. When the information received by the signal receiving module is to turn on the low beam function, the control module controls the light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the light source unit so that the light source unit forms a low beam light pattern on the light distribution screen; when the information received by the signal receiving module is to turn on the high beam function, the control module controls the light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the light source unit so that the HV point illuminance value of the light pattern formed by the light source unit on the light distribution screen is increased by 5-342lx compared with the HV point illuminance value of the low beam light pattern.

[0014] Preferably, the light source unit is a main low-beam light source unit for mainly contributing to brightness.

[0015] Preferably, when the information received by the signal receiving module is to turn on the high beam function, the control module controls the main low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the main low beam light source unit so that the light emitted by the main low beam light source unit moves upward by 0.4-5° on the light distribution screen relative to when the low beam function is realized.

[0016] Further preferably, when the information received by the signal receiving module is to turn on the high beam function, the control module controls the main low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the main low beam light source unit so that the light emitted by the main low beam light source unit moves upward by 0.57-2.5° on the light distribution screen relative to when the low beam function is realized.

[0017] Preferably, in the left-hand driving mode, the control module further controls the light projection position adjustment structure to adjust the emission angle of the main low-beam light source unit so that the light emitted by the main low-beam light source unit moves 0-15 degrees to the left on the light distribution screen relative to when the low-beam function is realized;

[0018] In right-hand driving mode, the control module also controls the light projection position adjustment structure to adjust the emission angle of the main low beam light source unit so that the light emitted by the main low beam light source unit moves 0-15° to the right on the light distribution screen relative to when the low beam function is realized.

[0019] Preferably, when the information received by the signal receiving module is to turn on the high beam function, the control module controls the main low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the main low beam light source unit so that the light pattern formed by the main low beam light source unit on the light distribution screen coincides with the light pattern obtained by rotating the low beam light pattern 180° with the HH line as the rotation axis.

[0020] Preferably, the light source module also includes an auxiliary low beam light source unit for mainly contributing to widening, the control module is connected to the auxiliary low beam light source unit, and the light projection position adjustment structure is connected to the auxiliary low beam light source unit. When the information received by the signal receiving module is to turn on the low beam function, the control module controls the auxiliary low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low beam light source unit so that the auxiliary low beam light source unit forms a low beam light pattern on the light distribution screen; when the information received by the signal receiving module is to turn on the high beam function, the control module controls the auxiliary low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low beam light source unit so that the HV point illuminance value of the light pattern formed by the auxiliary low beam light source unit on the light distribution screen is increased by 5-342lx compared with the HV point illuminance value of the auxiliary low beam light pattern.

[0021] Preferably, the main low beam light source unit includes at least one main low beam light source. When the information received by the signal receiving module is to turn on the high beam function, the control module controls the circuit where the main low beam light source is located to increase the current and / or the duty cycle of the current input to the main low beam light source.

[0022] Further preferably, the main low beam light source unit includes at least three main low beam light sources. When the information received by the signal receiving module is to turn on the high beam function, the control module also controls the circuit where the main low beam light source located in the middle area is located to increase the current and / or the duty cycle of the current input to the main low beam light source.

[0023] Preferably, the light source module also includes an auxiliary high beam light source unit, and the control module is connected to the auxiliary high beam light source unit. When the information received by the signal receiving module is to turn on the low beam function, the control module controls the auxiliary high beam light source unit to be turned off; when the information received by the signal receiving module is to turn on the high beam function, the control module controls the auxiliary high beam light source unit to be turned on.

[0024] Further preferably, the light projection position adjustment structure is connected to the auxiliary high-beam light source unit so as to be able to adjust the emission angle of the auxiliary high-beam light source unit.

[0025] Preferably, the light source module also includes an ADB light source unit, and the control module is connected to the ADB light source unit. When the information received by the signal receiving module is to turn on the low beam function, the control module controls the ADB light source unit to turn off; when the information received by the signal receiving module is to turn on the high beam function, the control module controls the ADB light source unit to turn on.

[0026] A second aspect of the present application provides a vehicle high and low beam control method, comprising:

[0027] The light source module includes a light source unit and a light projection position adjustment structure, wherein the light projection position adjustment structure is connected to the light source unit to adjust the emission angle of the light source unit;

[0028] In response to receiving a low beam control instruction, the light source unit is turned on, and the light projection position adjustment structure is caused to adjust the emission angle of the light source unit so that the light source unit forms a low beam pattern on the light distribution screen;

[0029] In response to receiving a high beam control command, the light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the light source unit so that the HV point illuminance value of the light pattern formed by the light source unit on the light distribution screen is increased by 5-342lx compared with the HV point illuminance value of the low beam light pattern.

[0030] Preferably, the light source unit is a main low-beam light source unit for mainly contributing to brightness. In response to receiving a high-beam control instruction, the main low-beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the main low-beam light source unit, so that the light emitted by the main low-beam light source unit moves upward by 0.4-5° on the light distribution screen relative to when the low-beam function is realized; or,

[0031] In response to receiving a high beam control instruction, the main low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the main low beam light source unit, so that the light pattern formed by the main low beam light source unit on the light distribution screen coincides with the light pattern obtained by rotating the low beam light pattern 180° with the HH line as the rotation axis.

[0032] Preferably, the light source unit is a main low-beam light source unit for mainly contributing to brightness, and the light source module further includes an auxiliary low-beam light source unit for mainly contributing to broadening;

[0033] In response to receiving a low beam control command to turn on the low beam, the auxiliary low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the auxiliary low beam light source unit, so that the auxiliary low beam light source unit forms an auxiliary low beam light pattern on the light distribution screen; in response to receiving a high beam control command to turn on the high beam, the auxiliary low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the auxiliary low beam light source unit, so that the HV point illuminance value of the light pattern formed by the auxiliary low beam light source unit on the light distribution screen is increased by 5-342lx compared with the HV point illuminance value of the auxiliary low beam light pattern.

[0034] Preferably, the light source unit is a main low beam light source unit for mainly contributing to brightness, and the light source module also includes an auxiliary high beam light source unit. The light projection position adjustment structure is connected to the auxiliary high beam light source unit so as to be able to adjust the emission angle of the auxiliary high beam light source unit. In response to receiving a low beam turn-on control instruction, the auxiliary high beam light source unit is turned off; in response to receiving a high beam turn-on control instruction, the auxiliary high beam light source unit is turned on.

[0035] A third aspect of the present application provides a vehicle, which includes the vehicle high and low beam control system described in the first aspect and executes the high and low beam control method described in the second aspect.

[0036] The above technical solution connects the light projection position adjustment structure to the light source unit, and controls the light projection position adjustment structure to adjust the light source unit's emission angle according to the indication of turning on or off the high / low beam function through the control module. When the low beam function is realized, a low beam pattern is formed on the light distribution screen. When the high beam function is realized, the high-voltage point illuminance value of the light pattern formed on the light distribution screen is increased by 5-342 lx compared to the high-voltage point illuminance value of the low beam pattern, thereby improving the utilization efficiency of light energy and reducing safety hazards caused by local excessive temperature. Furthermore, there is no need to set up separate high and low beam circuits, which can simplify the vehicle's high and low beam circuits and further reduce safety hazards.

[0037] Other advantages of the present application and the technical effects of the preferred embodiments will be further described in the following specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] FIG1 is a schematic diagram of the illumination of a low beam on a light distribution screen according to a specific embodiment of the present application;

[0039] FIG2 is a schematic diagram of illumination of a high beam on a light distribution screen according to a specific embodiment of the present application;

[0040] FIG3 is a schematic diagram of the illumination of a high beam on a light distribution screen according to another embodiment of the present application;

[0041] FIG4 is a schematic structural diagram of a main low-beam light source unit according to a specific embodiment of the present application;

[0042] FIG5 is a second schematic diagram of illumination of a high beam on a light distribution screen according to a specific embodiment of the present application;

[0043] FIG6 is a schematic diagram of the illumination of an auxiliary high beam on a light distribution screen according to a specific embodiment of the present application;

[0044] 7 is a schematic diagram of the illumination of a high beam on a light distribution screen according to a third specific embodiment of the present application;

[0045] FIG8 is a schematic diagram of the illumination of a low beam on a light distribution screen according to another specific embodiment of the present application;

[0046] FIG9 is a schematic structural diagram of a light source module according to a specific embodiment of the present application;

[0047] FIG10 is an exploded view of FIG9 ;

[0048] FIG11 is a schematic structural diagram of a light projection position adjustment structure according to a specific embodiment of the present application;

[0049] 12 is a schematic diagram of the illumination of the auxiliary high beam on the light distribution screen according to the third specific embodiment;

[0050] FIG13 is a schematic diagram of the illumination of the main high beam on the light distribution screen according to the third specific embodiment:

[0051] 14 is a schematic diagram of the illumination of the high beam on the light distribution screen according to the third specific embodiment;

[0052] FIG15 is a schematic diagram of the illumination of the high beam on the light distribution screen when the ADB function is provided in the fourth specific embodiment. DETAILED DESCRIPTION

[0053] The specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation methods described here are only used to illustrate and explain the present application, and the scope of protection of the present application is not limited to the specific implementation methods described below.

[0054] It should also be noted that, in the description of this application, unless otherwise expressly specified or limited, the terms "installed" and "connected" should be understood broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0055] As a basic embodiment of the present application, a vehicle high and low beam control system is provided, including a signal receiving module, a light source module and a control module; the light source module includes a light source unit and a light projection position adjustment structure, and the light projection position adjustment structure is connected to the light source unit so as to be able to adjust the emission angle of the light source unit; the signal receiving module is suitable for receiving information for turning on or off the high / low beam function, and the control module is respectively connected to the signal receiving module, the light source unit and the light projection position adjustment structure. When the information received by the signal receiving module is to turn on the low beam function, the control module controls the light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the light source unit so that the light source unit forms a low beam light pattern on the light distribution screen, and its light pattern diagram can be shown in Figure 1 or Figure 8; when the information received by the signal receiving module is to turn on the high beam function, the control module controls the light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the light source unit so that the HV point illuminance value of the light pattern formed by the light source unit on the light distribution screen is increased by 5-342lx compared with the HV point illuminance value of the low beam light pattern, and its light pattern diagram can be shown in Figure 2, Figure 3 or Figures 13-14.

[0056] According to this application, the light distribution screen is generally positioned vertically 25 meters in front of the headlamp's reference center. The HH line is a horizontal line passing through the HV point on the light distribution screen, and the VV line is a vertical line passing through the HV point on the light distribution screen. The HV point is the intersection of the HH and VV lines. "Up" and "Down" are the conventional vertical directions of the light distribution screen. "Left" and "Right" are the corresponding left and right directions when the vertical direction is determined and the light is emitted in the forward direction and the opposite direction is rearward.

[0057] As a specific embodiment of the present application, as shown in Figure 2, there must be light at the HV point, and the illuminance is increased relative to the illuminance at the HV point when the low beam function is turned on. In addition, in this embodiment, the illumination range of the light emitted by the light source unit above the HH line is much larger than the illumination range above the HH line when the low beam function is turned on.

[0058] The light source unit may include a light source, a substrate for securing the light source, and an optical element positioned in the light path of the light source. The optical element may be a reflector, a lens, or the like. A light projection position adjustment structure is connected between the light source unit and the vehicle body, enabling the light projection angle of the light source unit to be adjusted by the movement of the light projection position adjustment structure.

[0059] When the vehicle high and low beam control system provided by the above basic implementation method is working, when the light is insufficient and the headlights need to be turned on, the control module controls the light source unit to turn on. When the initial state of the high and low beam lights is in the low beam state, the light source unit forms a low beam light pattern on the light distribution screen; the signal receiving module is used to receive information to turn on or off the high / low beam function. When the received information is to turn on the low beam function, there is no need to additionally control the light projection position adjustment structure to adjust the emission angle of the light source unit; when the received signal is to turn on the high beam function, the light projection position adjustment structure is controlled to adjust the emission angle of the light source unit so that more light is irradiated at the HV point on the light distribution screen. When the initial state of the high and low beam lights is in the high beam state, the HV point illuminance value of the light pattern formed by the light source unit on the light distribution screen increases by 5-342lx relative to the HV point illuminance value of the low beam light pattern; when the received information is to turn on the low beam function, the light projection position adjustment structure is controlled to adjust the emission angle of the light source unit so that the light pattern formed by the light source unit on the light distribution screen moves, so that it can form a low beam light pattern on the light distribution screen; when the received signal is to turn on the high beam function, there is no need to additionally control the light projection position adjustment structure to adjust the emission angle of the light source unit. When it is necessary to switch between the high and low beam functions, the light projection position adjustment structure is controlled to adjust the emission angle of the light source unit so that the light emitted by the light source unit meets the above requirements. In other words, depending on the initial state of the high and low beam lights, the light source unit is moved up, down, left, right or flipped when the high and low beam functions are switched, so that the light irradiation position changes to meet the high and low beam regulations.

[0060] The structure for controlling the light projection position adjustment can adjust the angle up and down through the horizontal rotation axis (as shown in FIG9 ), and / or adjust the angle left and right through the longitudinal rotation axis. If necessary, the angle adjustment in the up and down directions and in the left and right directions can also be performed simultaneously. The light source unit can also be inverted by rotating the rotation axis parallel to the main optical axis, as shown in FIG13 . If necessary, the angle adjustment can be performed in combination with the horizontal rotation axis A and / or the longitudinal rotation axis B. The main optical axis is the optical axis of the optical module. The optical module refers to a device that realizes the high and low beam functions and includes components such as the light source unit. Specifically, as shown in FIG9 , the optical module is a device clamped by the horizontal rotation axis A and the longitudinal rotation axis B.

[0061] The light projection position adjustment structure can be any structure capable of changing the light projection position. As a specific embodiment of the present application, as shown in Figures 9-11, the light projection position adjustment structure includes a drive mechanism and a rotating connection structure. The rotating connection structure is capable of adjusting the emission angle of the light source unit under the action of the drive mechanism. The rotating connection structure is connected between the drive mechanism and the light source unit. Preferably, the drive mechanism can be a motor, and the drive mechanism is connected to the vehicle body via a bracket. The rotating connection structure includes a first connecting shaft and a second connecting shaft. The first connecting shaft passes through the light source unit to form a transverse rotation axis and is connected to the fixed bracket at both ends. The second connecting shaft forms a longitudinal rotation axis and is connected to the drive mechanism. During operation of the drive mechanism, the second connecting shaft can be used to change the vertical distance between the drive mechanism and the light source unit to achieve vertical adjustment of the light source unit's emission direction. The first connecting shaft is connected to the bracket ball head at both ends, and the second connecting shaft is connected to the light source unit ball head. The distance between the drive mechanism and the light source unit can be adjusted in any feasible manner, for example, by adjusting the length of the rotating connection structure between the drive mechanism and the light source unit, or by adjusting the inclination of the rotating connection structure with respect to the horizontal plane. In other embodiments of the present application, the connection method between the light projection position adjustment structure and other light source units (such as an auxiliary low beam light source unit) is similar to the connection method between the light projection position adjustment structure and the light source unit (such as the main low beam light source unit), and will not be repeated here.

[0062] The vehicle high and low beam control system provided by the above basic embodiment of the present application connects the light projection position adjustment structure with the light source unit, and controls the light projection position adjustment structure to adjust the emission angle of the light source unit according to the instruction of turning on or off the high / low beam function through the control module, so that a low beam light pattern is formed on the light distribution screen when the low beam function is realized, and the HV point illuminance value of the light pattern formed on the light distribution screen is increased by 5-342lx relative to the HV point illuminance value of the low beam light pattern when the high beam function is realized. There is no need to set up the high beam system and the low beam system at the same time, which improves the utilization efficiency of light energy and reduces the safety hazards caused by excessive local temperature. In addition, there is no need to set up the high beam circuit and the low beam circuit separately, which can simplify the vehicle high and low beam circuit and further reduce safety hazards. Moreover, the vehicle high and low beam control system can make the high beam HV point brightness value meet 80% of the high beam E max regulatory requirements for values.

[0063] E max It is the brightest point in the light distribution screen, generally located in a rectangular range of 5 degrees above, below, left and right of the intersection of the HH axis and the VV axis.

[0064] The light source unit may be a main light source unit for mainly contributing to brightness or an auxiliary light source unit for contributing to widening, the main light source unit may be a main low-beam light source unit or a main high-beam light source unit, and the auxiliary light source unit may be an auxiliary low-beam light source unit or an auxiliary high-beam light source unit. The light source unit is preferably a main low-beam light source unit for mainly contributing to brightness or a main high-beam light source unit for mainly contributing to brightness. As a specific embodiment of the present application, the light source unit is a main low-beam light source unit for mainly contributing to brightness. The use of the main low-beam light source unit can ensure the high-beam brightness without making the low-beam brightness too high, thereby improving driving safety and further improving the utilization rate of light energy.

[0065] In another specific embodiment of the present application, when the signal receiving module receives information that the high beam function is turned on, the control module controls the main low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the main low beam light source unit so that the light emitted by the main low beam light source unit moves upward by 0.4-5 degrees on the light distribution screen relative to when the low beam function is realized. When the high beam function is realized, the light pattern is moved upward by 0.4-5 degrees relative to when the low beam function is realized, so that the high beam HV brightness is closer to the high beam E max value.

[0066] Here, moving upward refers to moving upward along the extending direction of the VV line.

[0067] As a relatively preferred specific embodiment, when the information received by the signal receiving module is to turn on the high beam function, the control module controls the main low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the main low beam light source unit so that the light emitted by the main low beam light source unit moves upward by 0.57-2.5° on the light distribution screen relative to when the low beam function is realized.

[0068] In another specific embodiment of the present application, in left-hand driving mode, the control module further controls the light projection position adjustment structure to adjust the emission angle of the main low-beam light source unit so that the light emitted by the main low-beam light source unit moves 0-15 degrees to the left on the light distribution screen relative to when the low-beam function is realized; in right-hand driving mode, the control module further controls the light projection position adjustment structure to adjust the emission angle of the main low-beam light source unit so that the light emitted by the main low-beam light source unit moves 0-15 degrees to the right on the light distribution screen relative to when the low-beam function is realized. This can make the high-beam HV brightness closer to the high-beam E max value.

[0069] According to the present application, the leftward movement and the rightward movement refer to the extension direction along the VV line.

[0070] In the third specific embodiment of the present application, when the information received by the signal receiving module is to turn on the high beam function, the control module controls the main low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the main low beam light source unit so that the light pattern formed by the main low beam light source unit on the light distribution screen coincides with the light pattern obtained by rotating the low beam light pattern 180° with the HH line as the rotation axis.

[0071] In a specific embodiment of the present application, the light source module also includes an auxiliary low-beam light source unit for primarily contributing to widening. When switching between high and low beams, the auxiliary low-beam light source unit adjusts its light pattern distribution on the light distribution screen by moving up, down, left, right, or flipping, or may not adjust its light pattern distribution on the light distribution screen. As a relatively preferred embodiment of the present application, the control module is connected to the auxiliary low-beam light source unit, and the light projection position adjustment structure is connected to the auxiliary low-beam light source unit. When the signal receiving module receives information indicating that the low-beam function is enabled, the control module controls the auxiliary low-beam light source unit to be enabled, and controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low-beam light source unit so that the auxiliary low-beam light source unit forms an auxiliary low-beam light pattern on the light distribution screen. When the signal receiving module receives information indicating that the high-beam function is enabled, the control module controls the auxiliary low-beam light source unit to be enabled, and controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low-beam light source unit so that the HV point illuminance value of the light pattern formed by the auxiliary low-beam light source unit on the light distribution screen is increased by 5-342 lx compared to the HV point illuminance value of the auxiliary low-beam light pattern. This configuration not only expands the low beam field of view while improving low beam brightness, but also expands the high beam field of view while improving high beam brightness, making it more compliant with regulatory requirements and further improving driving safety. The light projection position adjustment mechanism also allows for fine-tuning of the high and low beam fields of view.

[0072] According to the present application, the light projection position adjustment structure can be provided with one group or multiple groups. When the light projection position adjustment structure is provided with one group, one group of light projection position adjustment structures can simultaneously control the adjustment of the main low beam light source unit and the auxiliary low beam light source unit, so that the adjustment of the main low beam light source unit and the auxiliary low beam light source unit can be synchronized; when the light projection position adjustment structure is provided with multiple groups, one group of light projection position adjustment structures controls the adjustment of the main low beam light source unit, and one group of light projection position adjustment structures controls the adjustment of the auxiliary low beam light source unit. Through the above settings, the main low beam light source unit and the auxiliary low beam light source unit can be adjusted separately.

[0073] In a specific embodiment of the present application, when the information received by the signal receiving module is to turn on the high beam function, the control module controls the auxiliary low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low beam light source unit so that the HV point illuminance value of the light pattern formed by the auxiliary low beam light source unit on the light distribution screen is increased by 5-342lx compared with the HV point illuminance value of the auxiliary low beam light pattern.

[0074] In another specific embodiment of the present application, when the signal receiving module receives information that the high beam function is turned on, the control module controls the auxiliary low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low beam light source unit so that the light emitted by the auxiliary low beam light source unit moves upward by 0.4-5 degrees on the light distribution screen relative to when the low beam function is realized. When the high beam function is realized, the light pattern is moved upward by 0.4-5 degrees relative to when the low beam function is realized, so that the high beam HV brightness is closer to the high beam E max value.

[0075] Specifically, the movement may be along the extending direction of the VV line.

[0076] As a relatively preferred specific embodiment, when the information received by the signal receiving module is to turn on the high beam function, the control module controls the auxiliary low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low beam light source unit so that the light emitted by the auxiliary low beam light source unit moves upward by 0.57-2.5° on the light distribution screen relative to when the low beam function is realized.

[0077] In another specific embodiment of the present application, in left-hand driving mode, the control module further controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low-beam light source unit so that the light emitted by the auxiliary low-beam light source unit moves 0-15 degrees to the left on the light distribution screen relative to when the low-beam auxiliary function is realized; in right-hand driving mode, the control module further controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low-beam light source unit so that the light emitted by the auxiliary low-beam light source unit moves 0-15 degrees to the right on the light distribution screen relative to when the low-beam function is realized. This can make the high-beam HV brightness closer to the high-beam E max value.

[0078] According to the present application, the leftward movement and the rightward movement refer to the extension direction along the VV line.

[0079] In another specific embodiment of the present application, when the information received by the signal receiving module is to turn on the high beam function, the control module controls the auxiliary low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low beam light source unit so that the light pattern formed by the auxiliary low beam light source unit on the light distribution screen coincides with the light pattern obtained by rotating the auxiliary low beam light pattern 180° with the HH line as the rotation axis.

[0080] In one specific embodiment of the present application, the main low-beam light source unit includes at least one main low-beam light source. When the signal receiving module receives information indicating that the high-beam function is enabled, the control module controls the circuitry of the main low-beam light source to increase the current input to the main low-beam light source and / or the duty cycle of the current. Exemplarily, the duty cycle of the current of the main low-beam light source is 100%. When the signal receiving module indicates that the high-beam function is enabled, by increasing the current input to the main low-beam light source unit and / or the duty cycle of the current, the brightness at the center of the high beam can be increased, thereby ensuring that the brightness of the emitted high beam better meets regulatory requirements and improves driving safety.

[0081] In a specific embodiment of the present application, the main low-beam light source unit includes at least three main low-beam light sources. When the information received by the signal receiving module is to turn on the high-beam function, the control module also controls the circuit where the main low-beam light source located in the middle area is located to increase the current input to the main low-beam light source and / or the duty cycle of the current. When the information received is to turn on the high-beam function, by increasing the current and / or the duty cycle of the current input to the main low-beam light source unit located in the middle area, the brightness of the high-beam center position can be made higher, thereby making the emitted high-beam brightness more in line with regulatory requirements and improving driving safety. Specifically, the value of the increase in current or the value of the increase in the duty cycle of the current can be determined according to actual conditions. For example, when using high beam, the duty cycle of the current of the main low-beam light source located in the middle area can be 100%, and when using low beam, the duty cycle of the current of the main low-beam light source can be 80%.

[0082] Specifically, when the main low-beam light source unit includes an odd number of main low-beam light sources, the circuit containing the center main low-beam light source increases the current and / or the duty cycle of the current input to the main low-beam light source. When the main low-beam light source unit includes an even number of main low-beam light sources, the circuit containing the two center main low-beam light sources increases the current and / or the duty cycle of the current input to the main low-beam light source. As shown in Figure 4, there are five main low-beam light sources, with the center main low-beam light source having a higher input current or a higher duty cycle, and the main low-beam light sources on both sides having a relatively lower input current or a lower duty cycle. The resulting light pattern is shown in Figure 5.

[0083] In one embodiment of the present application, the light source module further includes an auxiliary high-beam light source unit. The control module is connected to the auxiliary high-beam light source unit. When the signal receiving module receives information indicating that the low-beam function is enabled, the control module controls the auxiliary high-beam light source unit to be turned off; when the signal receiving module receives information indicating that the high-beam function is enabled, the control module controls the auxiliary high-beam light source unit to be turned on. The provision of the auxiliary high-beam light source unit can increase the brightness of the high-beam, thereby ensuring that the high-beam function better meets regulatory requirements and improves driving safety. The resulting light pattern is shown in Figure 6.

[0084] In one embodiment of the present application, the light projection position adjustment structure is connected to the auxiliary high beam light source unit to adjust the emission angle of the auxiliary high beam light source unit. This arrangement can fine-tune the widening of the high beam, expand the field of view of the high beam, and further improve driving safety.

[0085] In a relatively preferred embodiment of the present application, a vehicle high and low beam control system is provided, including a signal receiving module, a light source module and a control module; the light source module includes a main low beam light source unit, an auxiliary low beam light source unit, an auxiliary high beam light source unit and a light projection position adjustment structure, the main low beam light source unit is used to mainly contribute to brightness, the auxiliary low beam light source unit is used to mainly contribute to widening, the main low beam light source unit includes at least three main low beam light sources, and the light projection position adjustment structure is respectively connected to the main low beam light source unit, the auxiliary low beam light source unit, and the auxiliary high beam light source unit to be able to adjust the emission angle of the main low beam light source unit, the auxiliary low beam light source unit and the auxiliary high beam light source unit; the signal receiving module is suitable for receiving information to turn on or off the high / low beam function, and the control module is respectively connected to the signal receiving module, the main low beam light source unit, the auxiliary low beam light source unit, the auxiliary high beam light source unit and the light projection position adjustment structure, when the information received by the signal receiving module is to turn on the low beam function, the control module controls the main low beam light source unit and the auxiliary low beam light source unit to turn on, and the auxiliary high beam light source unit to turn off, And control the light projection position adjustment structure to adjust the emission angles of the main low beam light source unit and the auxiliary low beam light source unit so that the main low beam light source unit and the auxiliary low beam light source unit form a low beam light pattern on the light distribution screen; when the information received by the signal receiving module is to turn on the high beam function, the control module controls the main low beam light source unit, the auxiliary low beam light source unit and the auxiliary high beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angles of the main low beam light source unit and the auxiliary low beam light source unit so that the main low beam light source unit and the auxiliary low beam light source unit emit The light moves upward by 0.4-5° relative to that on the light distribution screen when the low beam function is realized, or moves left or right by 0-15° (left for left-hand driving and right for right-hand driving) while moving upward by 0.4-5°, or makes the light pattern formed by the main low beam light source unit and the auxiliary low beam light source unit on the light distribution screen coincide with the light pattern obtained by rotating the low beam light pattern 180° with the HH line as the rotation axis, and at the same time, the control module also controls the circuit where the main low beam light source located in the middle area is located to increase the current and / or the duty cycle of the current input to the main low beam light source.

[0086] The vehicle high and low beam control system provided by the above preferred embodiment has two groups of light projection position adjustment structures, one group of light projection position adjustment structures is used to simultaneously control the main low beam light source unit and the auxiliary low beam light source unit, and the other group of light projection position adjustment structures is used to control the auxiliary high beam light source unit.

[0087] The vehicle high and low beam control system provided by the above preferred embodiment connects a light projection position adjustment structure to a main low beam light source unit, and controls the light projection position adjustment structure to adjust the emission angles of the main low beam light source unit and the auxiliary low beam light source unit according to the indication of turning on or off the high / low beam function through a control module, so that a low beam light pattern is formed on the light distribution screen when the low beam function is realized. When the high beam function is realized, the light emitted by the main low beam light source unit and the auxiliary low beam light source unit moves upward by 0.4-5° relative to the light distribution screen when the low beam function is realized, or moves 0-15° to the left or right (left for left-hand driving and right for right-hand driving) while moving upward by 0.4-5°, or the light pattern formed by the main low beam light source unit and the auxiliary low beam light source unit on the light distribution screen coincides with the light pattern obtained by rotating the low beam light pattern 180° with the HH line as the rotation axis, thereby improving the utilization efficiency of light energy and reducing the safety hazards caused by local excessive temperature. In addition, there is no need to set up a high beam circuit and a low beam circuit separately, which can simplify the vehicle high and low beam circuits and further reduce safety hazards. In addition, the vehicle high and low beam control system can make the high beam HV point brightness value meet 80% of the high beam E max The vehicle meets regulatory requirements for high-beam headlights. Calibration of the low beam only requires vertical and horizontal positioning, eliminating the need for high beam headlights. This reduces the number of dimming steps on the vehicle production line and improves production cycle time.

[0088] The control system provided by the above embodiment, when only containing the main low beam light source unit, the high beam light pattern formed is as shown in Figure 3, and the low beam light pattern is as shown in Figure 8; when containing both the main low beam light source unit and the auxiliary low beam light source unit, the high beam light pattern formed is as shown in Figure 2 or Figure 14 (wherein, Figures 12-13 correspond to Figure 14, Figure 13 is the main high beam light pattern formed by the main low beam light source unit, and Figure 12 is the auxiliary high beam light pattern formed by the auxiliary low beam light source unit), and the low beam light pattern is as shown in Figure 1. At this time, after increasing the current and / or the duty cycle of the current of the main low beam light source located in the middle area, the high beam light pattern formed is as shown in Figure 5; when containing the main low beam light source unit, the auxiliary low beam light source unit and the auxiliary high beam light source unit at the same time, the high beam light pattern formed is as shown in Figure 7, wherein Figure 6 corresponds to Figure 7 and is the light pattern formed by the auxiliary high beam light source unit.

[0089] The vehicle high and low beam control system provided in the above embodiment, as shown in FIG15 , includes a light source module further comprising an ADB (Adaptive Driving Beam) light source unit with an ADB function. A control module is connected to the ADB light source unit. When the signal receiving module receives information indicating low beam activation, the control module controls the ADB light source unit to be turned off; when the signal receiving module receives information indicating high beam activation, the control module controls the ADB light source unit to be turned on. The control unit can activate the ADB light source unit to adjust the light pattern based on information detected by the camera. It can also control the operation of the light projection position adjustment mechanism based on the shape of the light pattern, ensuring that the low beam or high beam function meets the requirements of the above embodiment and does not dazzle other road users, thereby ensuring nighttime driving safety.

[0090] The second basic embodiment of the present application provides a vehicle high and low beam control method, including: the light source module includes a light source unit and a light projection position adjustment structure, the light projection position adjustment structure is connected to the light source unit to be able to adjust the emission angle of the light source unit; in response to receiving a low beam control command, the light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the light source unit, so that the light source unit forms a main low beam light pattern on the light distribution screen; in response to receiving a high beam control command, the light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the light source unit, so that the HV point illuminance value of the light pattern formed by the light source unit on the light distribution screen is increased by 5-342lx compared with the HV point illuminance value of the low beam light pattern.

[0091] The control method provided by the above basic implementation method can be executed based on the control system provided above.

[0092] The vehicle high and low beam control method provided by the above-mentioned basic embodiment of the present application connects a light projection position adjustment structure to a light source unit and controls the light projection position adjustment structure to adjust the emission angle of the light source unit according to the indication of turning on or off the high / low beam function, so that when the low beam function is realized, a main low beam light pattern is formed on the light distribution screen. When the high beam function is realized, the HV point illuminance value of the light pattern formed on the light distribution screen is increased by 5-342lx compared to the HV point illuminance value of the low beam light pattern, meeting the high beam regulatory requirements. There is no need to set up both the high and low beam systems, thus improving the utilization efficiency of light energy and reducing the safety risks caused by local excessive temperature. In addition, there is no need to set up separate high and low beam circuits, which can simplify the vehicle high and low beam circuits and further reduce safety risks.

[0093] In a specific embodiment of the present application, the light source unit is a main low-beam light source unit that mainly contributes to brightness. The use of the main low-beam light source unit can ensure high-beam brightness without making the low-beam brightness too high, thereby improving driving safety and further improving light energy utilization.

[0094] As a specific embodiment of the present application, in response to receiving a high beam control command, the main low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the main low beam light source unit so that part of the light emitted by the main low beam light source unit moves upward by 0.4-5 degrees on the light distribution screen relative to when the low beam function is realized. When the high beam function is realized, the light pattern is moved upward by 0.4-5 degrees relative to when the low beam function is realized, so that the high beam HV brightness is closer to the high beam E max value.

[0095] Specifically, the upward movement may be along the extending direction of the VV line.

[0096] As a relatively preferred specific embodiment, in response to receiving a high beam control instruction to turn on the high beam, the main low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the main low beam light source unit, so that part of the light emitted by the main low beam light source unit moves upward by 0.57-2.5° on the light distribution screen relative to when the low beam function is realized.

[0097] As a relatively preferred specific embodiment, in left-hand driving mode, in response to receiving the high beam control command to turn on, the main low beam light source unit is turned on, and the light projection position adjustment structure also adjusts the emission angle of the main low beam light source unit, so that part of the light emitted by the main low beam light source unit moves 0-15° to the left on the light distribution screen relative to when the low beam function is realized; in right-hand driving mode, in response to receiving the high beam control command to turn on, the main low beam light source unit is turned on, and the light projection position adjustment structure also adjusts the emission angle of the main low beam light source unit, so that part of the light emitted by the main low beam light source unit moves 0-15° to the right on the light distribution screen relative to when the low beam function is realized.

[0098] In another specific embodiment of the present application, in response to receiving a high beam control command to turn on the high beam, the main low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the main low beam light source unit, so that the light pattern formed by the main low beam light source unit on the light distribution screen coincides with the light pattern obtained by rotating the low beam light pattern 180° with the HH line as the rotation axis.

[0099] In one embodiment of the present application, the light source unit is a main low-beam light source unit that primarily contributes to brightness, and the light source module also includes an auxiliary low-beam light source unit that primarily contributes to widening. In response to receiving a low-beam activation command, the auxiliary low-beam light source unit is activated, and the light projection position adjustment structure adjusts the emission angle of the auxiliary low-beam light source unit so that the auxiliary low-beam light source unit forms an auxiliary low-beam light pattern on a light distribution screen. In response to receiving a high-beam activation command, the auxiliary low-beam light source unit is activated, and the light projection position adjustment structure adjusts the emission angle of the auxiliary low-beam light source unit so that the high-beam illuminance value of the light pattern formed on the light distribution screen is increased by 5-342 lx compared to the high-beam illuminance value of the auxiliary low-beam light pattern. This arrangement not only improves low-beam brightness while expanding the low-beam field of view, but also improves high-beam brightness while expanding the high-beam field of view, thereby better meeting regulatory requirements and further improving driving safety. The light projection position adjustment structure also enables fine-tuning of the field of view of the high and low beams.

[0100] According to the present application, the light projection position adjustment structure can be provided with one group or multiple groups. When the light projection position adjustment structure is provided with one group, one group of light projection position adjustment structures can simultaneously control the adjustment of the main low beam light source unit and the auxiliary low beam light source unit, so that the adjustment of the main low beam light source unit and the auxiliary low beam light source unit can be synchronized; when the light projection position adjustment structure is provided with multiple groups, one group of light projection position adjustment structures controls the adjustment of the main low beam light source unit, and one group of light projection position adjustment structures controls the adjustment of the auxiliary low beam light source unit, so that the main low beam light source unit and the auxiliary low beam light source unit can be adjusted separately.

[0101] In a specific embodiment of the present application, in response to receiving a high beam activation command, the auxiliary low beam light source unit is activated, and the light projection position adjustment structure adjusts the emission angle of the auxiliary low beam light source unit so that the light emitted by the auxiliary low beam light source unit moves upward by 0.4-5 degrees on the light distribution screen relative to when the low beam function is implemented. When the high beam function is implemented, the light pattern is moved upward by 0.4-5 degrees relative to when the low beam function is implemented, so that the high beam HV brightness is closer to the high beam E max value.

[0102] Specifically, the movement may be along the extending direction of the VV line.

[0103] As a relatively preferred specific embodiment, in response to receiving a command to turn on the high beam, the auxiliary low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the auxiliary low beam light source unit so that the light emitted by the auxiliary low beam light source unit moves upward by 0.57-2.5° on the light distribution screen relative to when the low beam function is realized.

[0104] In another specific embodiment of the present application, in left-hand driving mode, in response to receiving a high beam start-up command, the auxiliary low beam light source unit is turned on, and the position adjustment structure adjusts the emission angle of the auxiliary low beam light source unit so that the light emitted by the auxiliary low beam light source unit moves 0-15 degrees to the left on the light distribution screen relative to when the low beam auxiliary function is realized; in right-hand driving mode, in response to receiving a high beam start-up command, the auxiliary low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the auxiliary low beam light source unit so that the light emitted by the auxiliary low beam light source unit moves 0-15 degrees to the right on the light distribution screen relative to when the low beam function is realized. This can make the high beam HV brightness closer to the high beam E max value.

[0105] According to the present application, the leftward movement and the rightward movement refer to the extension direction along the VV line.

[0106] In another specific embodiment of the present application, in response to receiving a command to turn on the high beam, the auxiliary low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the auxiliary low beam light source unit so that the light pattern formed by the auxiliary low beam light source unit on the light distribution screen coincides with the light pattern obtained by rotating the auxiliary low beam light pattern 180° with the HH line as the rotation axis.

[0107] In one specific embodiment of the present application, the main low-beam light source unit includes at least one main low-beam light source. When the signal receiving module receives information indicating that the high-beam function is enabled, the control module controls the circuitry containing the main low-beam light source to increase the current input to the main low-beam light source and / or the duty cycle of the current. Exemplarily, the duty cycle of the current of the main low-beam light source is 100%. When the signal receiving module indicates that the high-beam function is enabled, increasing the current input to the main low-beam light source unit and / or the duty cycle of the current can increase the brightness at the center of the high beam, thereby ensuring that the brightness of the emitted high beam better meets regulatory requirements and improves driving safety.

[0108] In a relatively preferred embodiment of the present application, the main low-beam light source unit includes at least three main low-beam light sources. In response to receiving a high-beam activation command, the circuit for the main low-beam light sources located in the middle region increases the current and / or the duty cycle of the current input to the main low-beam light sources. When the high beam is activated, by increasing the current and / or the duty cycle of the main low-beam light sources located in the middle region, the brightness at the center of the high beam can be increased, thereby ensuring that the brightness of the emitted high beam better meets regulatory requirements and improves driving safety.

[0109] In one specific embodiment of the present application, the light source unit is a main low-beam light source unit that primarily contributes to brightness. The light source module also includes an auxiliary high-beam light source unit. The light projection position adjustment structure is connected to the auxiliary high-beam light source unit to adjust the emission angle of the auxiliary high-beam light source unit. In response to receiving a low-beam control command, the auxiliary high-beam light source unit is turned off; in response to receiving a high-beam control command, the auxiliary high-beam light source unit is turned on. The provision of the auxiliary high-beam light source unit can increase the brightness of the high beam, thereby making the high beam more compliant with regulatory requirements and improving safety. The above-mentioned provision can also fine-tune the width of the high beam, thereby further improving driving safety.

[0110] As a relatively preferred embodiment of the present application, a vehicle high and low beam control method is provided, including: a light source module including a main low beam light source unit, an auxiliary low beam light source unit, an auxiliary high beam light source unit and a light projection position adjustment structure, the main low beam light source unit is used to mainly contribute to brightness, the auxiliary low beam light source unit is used to mainly contribute to widening, and the light projection position adjustment structure is connected to the main low beam light source unit, the auxiliary low beam light source unit and the auxiliary high beam light source unit to be able to adjust the emission angles of the main low beam light source unit, the auxiliary low beam light source unit and the auxiliary high beam light source unit; in response to receiving a low beam control instruction to turn on the main low beam, the main low beam light source unit and the auxiliary low beam light source unit are turned on, and the auxiliary high beam light source unit is turned off, and the light projection position adjustment structure adjusts the emission angles of the main low beam light source unit and the auxiliary low beam light source unit to make the main low beam light source unit and the auxiliary low beam light source unit The element forms a low beam light pattern on the light distribution screen; in response to receiving a high beam control instruction, the main low beam light source unit, the auxiliary low beam light source unit and the auxiliary high beam light source unit are turned on, and the light projection position adjustment structure adjusts the emission angles of the main low beam light source unit and the auxiliary low beam light source unit, so that the light emitted by the main low beam light source unit and the auxiliary low beam light source unit moves upward by 0.4-5° relative to when the low beam function is realized on the light distribution screen, or moves 0-15° to the left or right while moving upward by 0.4-5° (left for left-hand driving, right for right-hand driving), or the light pattern formed by the main low beam light source unit and the auxiliary low beam light source unit on the light distribution screen coincides with the light pattern obtained by rotating the low beam light pattern 180° with the HH line as the rotation axis, and at the same time, the circuit where the main low beam light source unit is located increases the current and / or the duty cycle of the current input to the main low beam light source unit.

[0111] The vehicle high and low beam control method provided by the above preferred embodiment has two groups of light projection position adjustment structures, one group of light projection position adjustment structures is used to simultaneously control the main low beam light source unit and the auxiliary low beam light source unit, and the other group of light projection position adjustment structures is used to control the auxiliary high beam light source unit.

[0112] The vehicle high and low beam control method provided by the above preferred embodiment connects the light projection position adjustment structure with the main and low beam light source unit, and controls the light projection position adjustment structure through the control module according to the indication of turning on the high beam or low beam, so that a low beam light pattern is formed on the light distribution screen when the low beam function is realized. When the high beam function is realized, the light emitted by the main and low beam light source units and the auxiliary low beam light source units moves upward by 0.4-5° relative to the light distribution screen when the low beam function is realized, or moves 0-15° to the left or right while moving upward by 0.4-5° (left for left-hand driving, right for right-hand driving), or the light pattern formed by the main and low beam light source units and the auxiliary low beam light source units on the light distribution screen coincides with the light pattern obtained by rotating the low beam light pattern 180° with the HH line as the rotation axis. The brightness value of the HV point meets the high beam regulatory requirements, and there is no need to set up the high beam system and the low beam system at the same time, thereby improving the utilization efficiency of light energy and reducing the safety hazards caused by local excessive temperature. Moreover, there is no need to set up a separate high beam circuit and low beam circuit, which can simplify the vehicle high and low beam circuits and further reduce safety hazards. In addition, the vehicle high and low beam control system can make the high beam HV point brightness value meet 80% of the high beam E max The vehicle meets regulatory requirements for high-beam headlights. Calibration of the low beam only requires vertical and horizontal positioning, eliminating the need for high beam headlights. This reduces the number of dimming steps on the vehicle production line and improves production cycle time.

[0113] As a third basic embodiment of the present application, a vehicle is provided, comprising a vehicle high and low beam control system according to any of the aforementioned technical solutions and executing a high and low beam control method according to any of the aforementioned technical solutions. This vehicle possesses all the advantages of the aforementioned vehicle high and low beam control system and vehicle high and low beam control method, which will not be elaborated upon here.

[0114] The preferred embodiments of the present application are described in detail above in conjunction with the accompanying drawings. However, the present application is not limited to the specific details in the above embodiments. Within the technical concept of the present application, various simple modifications can be made to the technical solution of the present application, and these simple modifications all fall within the scope of protection of the present application.

[0115] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner unless there is any contradiction. In order to avoid unnecessary repetition, this application will not further describe various possible combinations.

[0116] In addition, the various implementation methods of the present application may be arbitrarily combined, and as long as they do not violate the concept of the present application, they should also be regarded as the contents disclosed in the present application.

Claims

1. A vehicle high and low beam control system, characterized in that: It includes a signal receiving module, a light source module and a control module; The light source module comprises a light source unit and a light projection position adjustment structure, wherein the light projection position adjustment structure is connected to the light source unit so as to be able to adjust the emission angle of the light source unit; The signal receiving module is suitable for receiving information for turning on or off the high / low beam function, and the control module is respectively connected to the signal receiving module, the light source unit and the light projection position adjustment structure. When the information received by the signal receiving module is to turn on the low beam function, the control module controls the light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the light source unit so that the light source unit forms a low beam light pattern on the light distribution screen; when the information received by the signal receiving module is to turn on the high beam function, the control module controls the light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the light source unit so that the HV point illuminance value of the light pattern formed by the light source unit on the light distribution screen is increased by 5-342lx compared with the HV point illuminance value of the low beam light pattern.

2. The vehicle high and low beam control system according to claim 1, characterized in that: The light source unit is a main low-beam light source unit for mainly contributing to brightness.

3. The vehicle high and low beam control system according to claim 2, characterized in that: When the information received by the signal receiving module is to turn on the high beam function, the control module controls the main low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the main low beam light source unit so that the light emitted by the main low beam light source unit moves upward by 0.4-5° on the light distribution screen relative to when the low beam function is realized.

4. The vehicle high and low beam control system according to claim 3, characterized in that: In the left-hand driving mode, the control module further controls the light projection position adjustment structure to adjust the emission angle of the main low-beam light source unit so that the light emitted by the main low-beam light source unit moves 0-15° to the left on the light distribution screen relative to when the low-beam function is realized; In the right-hand driving mode, the control module also controls the light projection position adjustment structure to adjust the emission angle of the main low beam light source unit so that the light emitted by the main low beam light source unit moves 0-15° to the right on the light distribution screen relative to when the low beam function is realized.

5. The vehicle high and low beam control system according to claim 2, characterized in that: When the information received by the signal receiving module is to turn on the high beam function, the control module controls the main low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the main low beam light source unit so that the light pattern formed by the main low beam light source unit on the light distribution screen coincides with the light pattern obtained by rotating the low beam light pattern 180° with the HH line as the rotation axis.

6. The vehicle high and low beam control system according to any one of claims 2 to 5, characterized in that: The light source module also includes an auxiliary low beam light source unit for mainly contributing to widening, the control module is connected to the auxiliary low beam light source unit, and the light projection position adjustment structure is connected to the auxiliary low beam light source unit. When the information received by the signal receiving module is to turn on the low beam function, the control module controls the auxiliary low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low beam light source unit so that the auxiliary low beam light source forms an auxiliary low beam light pattern on the light distribution screen; when the information received by the signal receiving module is to turn on the high beam function, the control module controls the auxiliary low beam light source unit to turn on, and controls the light projection position adjustment structure to adjust the emission angle of the auxiliary low beam light source unit so that the HV point illuminance value of the light pattern formed by the auxiliary low beam light source unit on the light distribution screen is increased by 5-342lx compared with the HV point illuminance value of the auxiliary low beam light pattern.

7. The vehicle high and low beam control system according to any one of claims 2 to 5, characterized in that: The main low-beam light source unit includes at least one main low-beam light source. When the information received by the signal receiving module is to turn on the high-beam function, the control module controls the circuit where the main low-beam light source is located to increase the current and / or the duty cycle of the current input to the main low-beam light source.

8. The vehicle high and low beam control system according to claim 7, characterized in that: The main low-beam light source unit includes at least three main low-beam light sources. When the information received by the signal receiving module is to turn on the high-beam function, the control module controls the circuit where the main low-beam light source located in the middle area is located to increase the current and / or the duty cycle of the current input to the main low-beam light source.

9. The vehicle high and low beam control system according to any one of claims 2 to 5, characterized in that: The light source module also includes an auxiliary high beam light source unit, and the control module is connected to the auxiliary high beam light source unit. When the information received by the signal receiving module is to turn on the low beam function, the control module controls the auxiliary high beam light source unit to be turned off; when the information received by the signal receiving module is to turn on the high beam function, the control module controls the auxiliary high beam light source unit to be turned on.

10. According to the vehicle high and low beam control system of claim 9, the light source module also includes an ADB light source unit, and the control module is connected to the ADB light source unit. When the information received by the signal receiving module is to turn on the low beam function, the control module controls the ADB light source unit to be turned off; when the information received by the signal receiving module is to turn on the high beam function, the control module controls the ADB light source unit to be turned on.

11. A vehicle high and low beam control method, characterized in that: include: The light source module comprises a light source unit and a light projection position adjustment structure, wherein the light projection position adjustment structure is connected to the light source unit so as to be able to adjust the emission angle of the light source unit; In response to receiving a low beam control instruction, the light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the light source unit so that the light source unit forms a low beam light pattern on the light distribution screen; In response to receiving a high beam control command, the light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the light source unit so that the HV point illuminance value of the light type formed by the light source unit on the light distribution screen is increased by 5-342lx compared to the HV point illuminance value of the low beam light type.

12. The vehicle high and low beam control method according to claim 11, characterized in that: The light source unit is a main low-beam light source unit for mainly contributing to brightness. In response to receiving a high-beam control instruction, the main low-beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the main low-beam light source unit so that the light emitted by the main low-beam light source unit moves upward by 0.4-5° on the light distribution screen relative to when the low-beam function is realized; or, In response to receiving a high beam control command, the main low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the main low beam light source unit, so that the light pattern formed by the main low beam light source unit on the light distribution screen coincides with the light pattern obtained by rotating the low beam light pattern 180° with the HH line as the rotation axis.

13. The vehicle high and low beam control method according to claim 11 or 12, characterized in that: The light source unit is a main low-beam light source unit for mainly contributing to brightness, and the light source module further includes an auxiliary low-beam light source unit for mainly contributing to broadening; In response to receiving a control command to turn on the low beam, the auxiliary low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the auxiliary low beam light source unit, so that the auxiliary low beam light source unit forms an auxiliary low beam light pattern on the light distribution screen; in response to receiving a control command to turn on the high beam, the auxiliary low beam light source unit is turned on, and the light projection position adjustment structure adjusts the emission angle of the auxiliary low beam light source unit, so that the HV point illuminance value of the light pattern formed by the auxiliary low beam light source unit on the light distribution screen is increased by 5-342lx compared with the HV point illuminance value of the auxiliary low beam light pattern.

14. The vehicle high and low beam control method according to claim 11 or 12, characterized in that: The light source unit is a main low-beam light source unit for mainly contributing to brightness, the light source module also includes an auxiliary high-beam light source unit, the light projection position adjustment structure is connected to the auxiliary high-beam light source unit to be able to adjust the emission angle of the auxiliary high-beam light source unit, and in response to receiving a low-beam control instruction, the auxiliary high-beam light source unit is turned off; In response to receiving a high beam on control command, the auxiliary high beam light source unit is turned on.

15. A vehicle, characterized in that: The invention comprises the vehicle high and low beam control system according to any one of claims 1 to 10, and executes the high and low beam control method according to any one of claims 11 to 14.

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